High-precision differential pressure gas permeability tester for pharmaceutical and food packaging, testing O2, CO2, N2 in films, aluminum foils, and barrier materials.
The Differential Pressure Gas Permeability Tester uses the differential pressure method to measure gas transmission rates (GTR), solubility coefficients, and diffusion coefficients. A preconditioned sample is clamped between high- and low-pressure chambers, evacuated to below 20 Pa, and a test gas (e.g., O2, CO2, N2) is introduced to create a 0.1 MPa pressure difference. Gas permeates from high to low pressure, and the pressure change is monitored to calculate GTR using the formula: GTR = (Vc * T * dp/dt) / (A * R).
This tester is ideal for pharmaceutical blister packaging and food packaging, testing materials like aluminum foils, plastic films, and high-barrier composites. It ensures packaging meets strict requirements for gas barrier properties, protecting product shelf life and quality.
Compliant with GB/T 1038, ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-A, and YBB 00082003, the tester provides reliable, high-precision results, making it a trusted solution for quality control in packaging industries.
The Differential Pressure Gas Permeability Tester is a professional instrument for accurate measurement of gas transmission rates in pharmaceutical and food packaging materials, including plastic films, aluminum foils, and high-barrier composites. Using the differential pressure method, it tests O2, CO2, N2, and air permeability, ensuring compliance with GB/T 1038, ASTM D1434, and ISO 2556 standards.
Equipped with three independent test chambers, this tester supports simultaneous testing of multiple samples, enhancing efficiency. Its automated, one-click operation, high-precision sensors, and wide-range temperature control (5-95°C) ensure reliable results across diverse conditions.
Tailored for distributors, wholesalers, and manufacturers, this tester offers customizable options, including GMP-compliant software and support for toxic or flammable gases. Contact us for quotes or tailored solutions.
| Application | Description |
|---|---|
| Films | Suitable for gas permeability testing of various plastic films, composite films, paper-plastic composite films, co-extruded films, aluminized films, aluminum foils, and aluminum foil composite films. |
| Sheets | Suitable for gas permeability testing of engineering plastics, rubber, and construction materials, such as PP sheets, PVC sheets, and PVDC sheets. |
| Flammable and Explosive Gases | Suitable for barrier performance testing of films against flammable and explosive gases (requires special accessories or customization). |
| Biodegradable Films | Suitable for gas permeability testing of biodegradable films, such as starch-based biodegradable bags (requires special accessories or customization). |
| Paper and Paperboard | Suitable for gas permeability testing of paper and paper-plastic composites, such as cigarette aluminum foil paper, Tetra Pak sheets, instant noodle paper bowls, and disposable paper cups (requires special accessories or customization). |
| Fiberglass Cloth and Paper | Suitable for gas permeability testing of fiberglass cloth and paper, such as Teflon paint cloth, Teflon high-temperature cloth, and fluorosilicone cloth (requires special accessories or customization). |
| Cosmetic Tube Sheets | Suitable for gas permeability testing of cosmetic tubes, aluminum-plastic tubes, and toothpaste tube sheets (requires special accessories or customization). |
| Rubber Sheets | Suitable for gas permeability testing of rubber sheets, such as those used in automotive tire applications (requires special accessories or customization). |
| Parameter | Value |
|---|---|
| Test Range | 0.05～50,000 cm³/m²·24h·0.1MPa (standard), ≥500,000 cm³/m²·24h·0.1MPa (extended) |
| Temperature Control Range | 5～95°C (water bath) |
| Temperature Control Accuracy | ±0.1°C |
| Vacuum Resolution | 0.1 Pa |
| Vacuum Degree | <20 Pa |
| Sample Quantity | 3 independent samples |
| Sample Size | Φ97 mm |
| Sample Thickness | ≤5 mm |
| Test Gases | O2, N2, CO2, Air (CH4, H2 with customization) |
| Test Pressure | -0.1 MPa～+0.1 MPa (standard), up to 1 MPa (customizable) |
| Gas Source Pressure | 0.4 MPa～0.6 MPa |
| Interface Size | Φ6 mm polyurethane tube |
| Dimensions | 765mm (L) × 440mm (W) × 470mm (H) |
| Power Supply | AC 220 V 50 Hz |
| Net Weight | Approx. 62 kg |
| Remark | Gas source and distilled water to be provided by user |
Utilizes high-precision vacuum and pressure sensors with full-process pressure retention for accurate gas permeability testing.
Features three independent test chambers for simultaneous testing of multiple samples, enhancing efficiency.
Offers one-click, fully automated testing with automatic result saving, minimizing user intervention.
Provides wide-range temperature control (5-95°C, ±0.1°C) and optional humidity control for diverse testing conditions.
Supports testing of toxic or flammable gases (with customization), suitable for specialized pharmaceutical applications.
Includes standard membrane and external sensor calibration for compliance with ASTM D1434 and ISO 2556.
Optional GMP-compliant software ensures data traceability with multi-level permissions, audit trails, and electronic signatures.
A leading German pharmaceutical packaging company faced challenges ensuring low oxygen transmission rates for blister packaging used in hospital-grade medications. Their existing testing methods were inefficient and struggled to meet ASTM D1434 and GMP standards.
The company implemented the Differential Pressure Gas Permeability Tester to measure O2 and CO2 permeability in aluminum foils and composite films. Its three independent chambers enabled simultaneous testing, while high-precision sensors delivered reliable results.
The implementation process involved optimizing test parameters (23°C, 50% humidity) and calibrating with standard membranes. The GMP-compliant software provided robust data traceability, streamlining quality control.
The results included a 30% reduction in testing time, OTR values below 0.1 cm³/m²·24h·0.1MPa, and full compliance with regulatory standards, enhancing product quality and reducing quality control costs.
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